פּירוש אויף תהילים 145:17

Righteous (צדיק): For with righteousness and fairness, He provides food for everyone. Even though He created living creatures to prey upon each other—like the cat for the mouse, the lion, bear, leopard, and other animals that prey on others, and likewise the birds that swoop down on other birds—everything is just from Him. For He also provides food for the predators during their lives. However, when their time comes to die, He has decreed in advance that some will die from being hunted by other animals, and others will die from natural causes.

And gracious in all his works (וחסיד בכל מעשיו): He provides for them beyond what He is obligated to give, and they are not deserving of receiving it. Rather, His grace prevails over them.